Kinetics of catalytic oxidation of benzoin to benzil by alumina supported active MnO2

被引：8

作者：

Azizian, S. ^{[1
]}

Eftekhari-Bafrooei, A. ^{[1
]}

Bashiri, H. ^{[1
]}

机构：

[1] Bu Ali Sina Univ, Fac Chem, Dept Phys Chem, Hamadan, Iran

来源：

KINETICS AND CATALYSIS | 2010年 / 51卷 / 02期

关键词：

MANGANESE-DIOXIDE; SELECTIVE OXIDATION; AEROBIC OXIDATION; ALCOHOLS; OXYGEN;

D O I：

10.1134/S0023158410020126

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The kinetics of benzoin oxidation to benzil over MnO2/Al2O3 was studied by investigation of the effect of initial concentration of reactant and product, catalyst mass and also temperature on the reaction rate. On the basis of obtained experimental data a rate law for the kinetics of reaction was proposed and then the reaction rate constants and activation energy of reaction were computed. Finally a simple reaction mechanism was proposed for the reaction. Also it has been shown that the rate controlling step of oxidation of benzoin to benzil is removal of hydrogen from the alpha-C-atom.

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页码：244 / 249

页数：6

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